Safety-hatchway for elevators



No. 6I4,358, v v Patented Nov. I5, |898. R. G. YONGE.

SAFETY HATCHWAY FOR ELEVATORS.

(Appletion led Feb. 14, 1898.) l (No Model.) 2 Sheets-Sheet I.

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No.' s|4,358.

(No Mode'I.)

Patented Nov. I5, |898. R. G. YONGE. A

SAFETY HATCHWAY FDH ELEVATORS.

(Application led Feb. 14, 1898.)

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NiTED *rares ROBERT-G. YONGE, OF ST. LOUIS, MISSOURI.

SAFETY-HATCHWAY Fo R ELEvAT'o Rs.

SPCIFICATIN forming part of Letters Patent No. 614,358, dated November*15, 1898. Application filed February 14, 1898. vSerial No. v6 70,245.(No model.)

To a/ZZ whom it may concern:

Be it known that I, ROBERT G. YONGE, a citizen of the United States,residing at the city of St. Louis, in the State of Missouri, haveinvented a certain new and useful Improvement in Safety-Hatchways forElevators, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, formingpart of this speciiication.

My invention relates to a safety-hatchway intended for use in connectionwith freightelevators that convey articles from iloor to floor in abuilding, the obj ect of my invention being to construct a simple andefficient hatchway that will completely close all communication throughthe elevator-aperture in a floor and prevent a draft therethrough, thedevice being so constructed as to require la minimum of power to operatethe doors in the passage of the car through the hatchway.

My invention consists in features of novelty hereinafter fullydescribed, and' pointed out in the claim.

Figure I is a vertical sectional View taken through the hatchway and theelevator-car. Fig. II is a sectional View taken online II II, Fig. I.Fig. III is a similar view to Fig. I, showing the elevator-car withinthe hatchway and the hatchway-doors swung open in the position assumedwhen the car is passing through the hatchway. Fig. IV is a sideelevation of the device, showing the car in the position assumed whendescending and throwing the hatchway-doors open for its passage throughthe hatchway. Fig. V is an enlarged detail sectional view taken on theline V V, Fig. VI, through the upper portions of the hatchway-doors.Fig. VI is a top view of the upper central portions of thehatchway-doors. Fig. VII is a vertical sectional View showing the devicelocated below the ioor of the building instead of above the floor.

l designates the floor of a building provided with the hatchway-aperture2. Above the floor l is a housing 3, that surrounds thehatchway-aperture 2 and is provided with a top 4, containing an aperture5 for the passage of the elevator-car. Within the housing 3 are strips6, attached to the sides of the housing and inclined inwardly towardeach other from the floor upward.'

7 designates hatchway-doors connected by hinges 8 to the floor l andadapted to swing to and from each other in such manner that when theirupper free edges meet said doors assume a position at an angle to eachother, as clearly shown in Fig. I. When said doors are swung outwardlyinto the position shown in Fig. III, (which is the position assumed whenthe elevator-car is passing through the hatchway,) they are stopped bythe strips 6 from moving into positions beyond a vertical line fromtheir hinges and are therefore capable of returning to the closedposition by gravity as soon as freed from contact with the elevator-car.

Secured to the upper ends of the doors 7 are prongs 9, Whose upper endsextend outwardly in opposite directions, thereby forming a V-shapedguide between the prongs when the doors are closed.

l0 are elevator-guides between which the car travels.

1I designates the elevator-car, to which a hoist-rope l2 is connected.At each end of the car ll are V-shaped cams 13, the lower one of whichis adapted to enter between the prongs 9 on the doors 7 when the car isdescending, and thereby throw the doors apart and allow the cams totravel on through the doors, completely opening them for the passage ofthe car. In the upward travel of the car the upper cam I3 strikes thedoors when it reaches their upper ends and throws them open. In eachdirection of the travel of the car after it has passed the doors againswing inwardly by gravity until their edges meet, and the hatchway isclosed.

The housing 3, surrounding and inclosing the hatchway doors andaperture, effectually closes all communication for draft through thehatchway from one floor to another.

14 designates a counterbalance-weight that operates in a boxing l5 andis connected to the hoistrope l2 to counterbalance the weight of theelevator-car.

The device thus far described is intended more particularly for use inconnection with elevators that are operated by hand.

In Fig. VII, I have shown the device of a form in which it is capable ofuse in connection with elevators operated by mechanical power.

IOO

In this instance the device is arranged beneath the ioors of a buildinginstead of above the iioors, as shown and described with relation toFigs. I to VI, inelusive. 1a designates the floor, provided with ahatehwayaperture 2a. 3a designates a housing located beneath the ioor,which is provided with a bottom 4, that partially ineloses the lower endof the housing and has an aperture 5u. Ga are strips inclined inwardlyin an upward direction on the interior of the housing 3, 7 are thedoors, connected by hinges S to the bottoni 45a. The doors 7 areprovided with prongs 0f. 10a-are guides in Contact with which theelevator-car travels, and ll is the elevator-car, connected to ahoist-rope l2 and provided at each end with V-shaped cams 13.

The operation of ROBT. G. YONGE.

In presence of-` E. S. KNIGHT, N. V. ALEXANDER.

